Bug 572075 - Make the scanner work with static and convenience libraries

Bug 572075 - Make the scanner work with static and convenience libraries

We need to reference the get_type() functions we are going to dlsym
or otherwise the linker may not include them in the introspection
binary.

giscanner/dumper.py: Accept a list of _get_type() functions
  and write an array referencing them into the introspection
  binary.
giscanner/glibtransformer.py: Break parsing into too stages -
 the stage where we compute the _get_type() functions and the
 stage where we invoke the introspection binary.
tools/g-ir-scanner: Pass _get_type() functions from the
 scanner when creating the introspection binary.

http://bugzilla.gnome.org/show_bug.cgi?id=572075